/* Yet Another Forum.NET
 * Copyright (C) 2003-2005 Bjørnar Henden
 * Copyright (C) 2006-2013 Jaben Cargman
 * Copyright (C) 2014-2020 Ingo Herbote
 * https://www.yetanotherforum.net/
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at

 * https://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
namespace YAF.Types.Extensions
{
    using System.Collections.Generic;
    using System.Linq;

    using YAF.Types;

    /// <summary>
    /// The collection extensions.
    /// </summary>
    public static class CollectionExtensions
    {
        #region Public Methods

        /// <summary>
        /// The add or update.
        /// </summary>
        /// <param name="dictionary">
        /// The dictionary.
        /// </param>
        /// <param name="key">
        /// The key.
        /// </param>
        /// <param name="value">
        /// The value.
        /// </param>
        /// <typeparam name="TKey">
        /// </typeparam>
        /// <typeparam name="TValue">
        /// </typeparam>
        public static void AddOrUpdate<TKey, TValue>(
            [NotNull] this IDictionary<TKey, TValue> dictionary,
            TKey key,
            TValue value)
        {
            CodeContracts.VerifyNotNull(dictionary, "dictionary");

            if (dictionary.ContainsKey(key))
            {
                dictionary[key] = value;
            }
            else
            {
                dictionary.Add(key, value);
            }
        }

        /// <summary>
        /// The add range.
        /// </summary>
        /// <param name="dictionaryFirst">
        /// The dictionary first.
        /// </param>
        /// <param name="dictionarySecondary">
        /// The dictionary secondary.
        /// </param>
        /// <typeparam name="TKey">
        /// </typeparam>
        /// <typeparam name="TValue">
        /// </typeparam>
        public static void AddRange<TKey, TValue>(
            [NotNull] this IDictionary<TKey, TValue> dictionaryFirst,
            [NotNull] IDictionary<TKey, TValue> dictionarySecondary)
        {
            CodeContracts.VerifyNotNull(dictionaryFirst, "dictionaryFirst");
            CodeContracts.VerifyNotNull(dictionarySecondary, "dictionarySecondary");

            dictionarySecondary.ToList().ForEach(i => dictionaryFirst.AddOrUpdate(i.Key, i.Value));
        }

        #endregion
    }
}